Finding the Third Proportional to 60,000 and 123,840

Step by Step Solution

1. Step 1: Write the proportion equation
   60,000 : 123,840 = 123,840 : x
2. Step 2: Convert to fraction form
   60,000/123,840 = 123,840/x
3. Step 3: Cross multiply
   60,000x = 123,840 × 123,840
4. Step 4: Simplify right side
   60,000x = 15,336,345,600
5. Step 5: Solve for x
   x = 15,336,345,600/60,000
6. Step 6: Final answer
   x = 255,605.76